I would rather fund someone looking to make a single good cross-platform XMPP native client (iOS, Android, Windows and macOS) with push notifications that actually work and video - not the garbage we’ve today.
So are you? Because if you are just sitting around and waiting for someone out there to make a product by your own perfect standards, than its equal to doing nothing. Compared to doing nothing, supporting Calyx and/or Signal is infinitely better.